In an effort to reduce the
amount of undesirable e-mail that enters our network, Sterling has elected
to refuse mail from servers that are found on the DNS Blacklists of
These independent organizations
maintain lists of mail servers that have allowed spam to be sent directly
from their server, or have configurations that allow spam to be relayed
through their server.
When any server attempts to
deliver mail to Sterling Insurance, our system is configured to verify the
sender against several Blacklists. If the IP address of the incoming server
is found on any list, the connection is refused and a rejection notice is
returned to the sender.
If you have received such a
rejection notice, and your organization maintains its own mail server, you
may wish to notify your mail system administrators of the situation so that
they can resolve the issue and take the necessary steps to remove the server
from the listing organization. If your mail is hosted by your Internet
Service Provider (ISP) or another outside agency, you may wish to notify
them of the situation.
Although this solution has
dramatically reduced the amount of unwanted e-mail that has entered our
network, we do realize that occasionally legitimate business partners are
being blocked. Please feel free to contact the intended recipient of your
communication to discuss alternative methods of transfer, and do not
hesitate to contact a member of Sterling’s Network Administration Team if
you have any questions.